./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6d5da741db538e8728209fa456d0dc9c63ceba5521dacbaf062bafc94e3da01 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:47:45,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:47:45,190 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:47:45,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:47:45,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:47:45,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:47:45,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:47:45,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:47:45,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:47:45,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:47:45,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:47:45,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:47:45,226 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:47:45,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:47:45,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:47:45,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:47:45,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:47:45,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:47:45,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:47:45,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:47:45,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:47:45,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:47:45,232 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:47:45,232 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:47:45,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:47:45,232 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:47:45,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:47:45,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:47:45,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:47:45,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:47:45,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:47:45,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:47:45,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:47:45,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:47:45,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:47:45,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:47:45,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:47:45,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:47:45,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:47:45,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:47:45,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:47:45,238 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6d5da741db538e8728209fa456d0dc9c63ceba5521dacbaf062bafc94e3da01 [2024-11-16 23:47:45,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:47:45,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:47:45,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:47:45,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:47:45,456 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:47:45,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i [2024-11-16 23:47:46,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:47:46,991 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:47:46,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-40.i [2024-11-16 23:47:47,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdad75e7c/0d5f337974894fa38f57a0fd24913e6e/FLAG6817b2d71 [2024-11-16 23:47:47,356 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdad75e7c/0d5f337974894fa38f57a0fd24913e6e [2024-11-16 23:47:47,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:47:47,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:47:47,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:47:47,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:47:47,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:47:47,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:47,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ec6ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47, skipping insertion in model container [2024-11-16 23:47:47,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:47,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:47:47,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:47:47,836 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:47:47,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:47:47,969 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:47:47,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47 WrapperNode [2024-11-16 23:47:47,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:47:47,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:47:47,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:47:47,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:47:47,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:47,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,012 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 169 [2024-11-16 23:47:48,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:47:48,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:47:48,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:47:48,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:47:48,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,036 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:47:48,042 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:47:48,043 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:47:48,043 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:47:48,043 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (1/1) ... [2024-11-16 23:47:48,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:47:48,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:47:48,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:47:48,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:47:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:47:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-16 23:47:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-16 23:47:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:47:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 23:47:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:47:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:47:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:47:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-16 23:47:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-16 23:47:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:47:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 23:47:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:47:48,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:47:48,113 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:47:48,244 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:47:48,247 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:47:48,528 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:47:48,529 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:47:48,564 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:47:48,564 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:47:48,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:47:48 BoogieIcfgContainer [2024-11-16 23:47:48,565 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:47:48,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:47:48,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:47:48,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:47:48,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:47:47" (1/3) ... [2024-11-16 23:47:48,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66483cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:47:48, skipping insertion in model container [2024-11-16 23:47:48,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:47" (2/3) ... [2024-11-16 23:47:48,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66483cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:47:48, skipping insertion in model container [2024-11-16 23:47:48,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:47:48" (3/3) ... [2024-11-16 23:47:48,574 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-40.i [2024-11-16 23:47:48,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:47:48,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-16 23:47:48,588 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:47:48,664 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 23:47:48,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 456 flow [2024-11-16 23:47:48,830 INFO L124 PetriNetUnfolderBase]: 32/558 cut-off events. [2024-11-16 23:47:48,831 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-16 23:47:48,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 558 events. 32/558 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2281 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 267. Up to 8 conditions per place. [2024-11-16 23:47:48,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 456 flow [2024-11-16 23:47:48,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 456 flow [2024-11-16 23:47:48,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:47:48,859 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d375e11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:47:48,860 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-16 23:47:48,863 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:47:48,863 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-11-16 23:47:48,863 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:47:48,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:48,864 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:48,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-16 23:47:48,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:48,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1174332090, now seen corresponding path program 1 times [2024-11-16 23:47:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76504425] [2024-11-16 23:47:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:49,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:49,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76504425] [2024-11-16 23:47:49,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76504425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:49,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:49,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:49,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570001318] [2024-11-16 23:47:49,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:49,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:49,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:49,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:49,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-16 23:47:49,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:49,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:49,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-16 23:47:49,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:49,403 INFO L124 PetriNetUnfolderBase]: 85/994 cut-off events. [2024-11-16 23:47:49,404 INFO L125 PetriNetUnfolderBase]: For 42/44 co-relation queries the response was YES. [2024-11-16 23:47:49,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 994 events. 85/994 cut-off events. For 42/44 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5602 event pairs, 64 based on Foata normal form. 82/893 useless extension candidates. Maximal degree in co-relation 886. Up to 207 conditions per place. [2024-11-16 23:47:49,416 INFO L140 encePairwiseOnDemand]: 207/218 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-11-16 23:47:49,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 500 flow [2024-11-16 23:47:49,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-11-16 23:47:49,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8669724770642202 [2024-11-16 23:47:49,434 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 456 flow. Second operand 3 states and 567 transitions. [2024-11-16 23:47:49,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 500 flow [2024-11-16 23:47:49,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:47:49,442 INFO L231 Difference]: Finished difference. Result has 207 places, 207 transitions, 438 flow [2024-11-16 23:47:49,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=207} [2024-11-16 23:47:49,447 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2024-11-16 23:47:49,449 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 207 transitions, 438 flow [2024-11-16 23:47:49,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:49,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:49,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:49,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:47:49,450 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-16 23:47:49,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2018983369, now seen corresponding path program 1 times [2024-11-16 23:47:49,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:49,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142372931] [2024-11-16 23:47:49,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:49,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:49,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:49,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142372931] [2024-11-16 23:47:49,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142372931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:49,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:49,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:49,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264671293] [2024-11-16 23:47:49,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:49,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:49,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:49,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:49,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:49,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 218 [2024-11-16 23:47:49,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:49,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:49,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 218 [2024-11-16 23:47:49,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:49,752 INFO L124 PetriNetUnfolderBase]: 117/1005 cut-off events. [2024-11-16 23:47:49,753 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-16 23:47:49,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 1005 events. 117/1005 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5532 event pairs, 78 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 1304. Up to 243 conditions per place. [2024-11-16 23:47:49,759 INFO L140 encePairwiseOnDemand]: 195/218 looper letters, 31 selfloop transitions, 11 changer transitions 0/197 dead transitions. [2024-11-16 23:47:49,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 197 transitions, 502 flow [2024-11-16 23:47:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:49,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:49,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2024-11-16 23:47:49,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027522935779816 [2024-11-16 23:47:49,763 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 3 states and 525 transitions. [2024-11-16 23:47:49,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 197 transitions, 502 flow [2024-11-16 23:47:49,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 197 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:49,768 INFO L231 Difference]: Finished difference. Result has 195 places, 195 transitions, 432 flow [2024-11-16 23:47:49,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=195, PETRI_TRANSITIONS=195} [2024-11-16 23:47:49,771 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -15 predicate places. [2024-11-16 23:47:49,771 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 195 transitions, 432 flow [2024-11-16 23:47:49,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:49,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:49,772 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:49,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:47:49,773 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-16 23:47:49,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:49,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1502982645, now seen corresponding path program 1 times [2024-11-16 23:47:49,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:49,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292462454] [2024-11-16 23:47:49,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:49,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:49,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:49,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292462454] [2024-11-16 23:47:49,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292462454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:49,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:49,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:47:49,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760312336] [2024-11-16 23:47:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:49,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:49,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:49,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:49,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:49,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 218 [2024-11-16 23:47:49,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 195 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:49,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:49,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 218 [2024-11-16 23:47:49,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:50,018 INFO L124 PetriNetUnfolderBase]: 27/511 cut-off events. [2024-11-16 23:47:50,019 INFO L125 PetriNetUnfolderBase]: For 28/32 co-relation queries the response was YES. [2024-11-16 23:47:50,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 511 events. 27/511 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1612 event pairs, 10 based on Foata normal form. 6/464 useless extension candidates. Maximal degree in co-relation 443. Up to 39 conditions per place. [2024-11-16 23:47:50,023 INFO L140 encePairwiseOnDemand]: 206/218 looper letters, 17 selfloop transitions, 8 changer transitions 9/200 dead transitions. [2024-11-16 23:47:50,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 200 transitions, 500 flow [2024-11-16 23:47:50,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:50,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-11-16 23:47:50,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-11-16 23:47:50,026 INFO L175 Difference]: Start difference. First operand has 195 places, 195 transitions, 432 flow. Second operand 3 states and 594 transitions. [2024-11-16 23:47:50,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 200 transitions, 500 flow [2024-11-16 23:47:50,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 200 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:50,033 INFO L231 Difference]: Finished difference. Result has 196 places, 187 transitions, 426 flow [2024-11-16 23:47:50,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=196, PETRI_TRANSITIONS=187} [2024-11-16 23:47:50,034 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -14 predicate places. [2024-11-16 23:47:50,034 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 187 transitions, 426 flow [2024-11-16 23:47:50,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:50,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:50,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:50,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:47:50,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-16 23:47:50,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1322848710, now seen corresponding path program 1 times [2024-11-16 23:47:50,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:50,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847471044] [2024-11-16 23:47:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:50,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:50,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:50,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:50,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847471044] [2024-11-16 23:47:50,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847471044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:50,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:50,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:47:50,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178491692] [2024-11-16 23:47:50,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:50,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:47:50,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:50,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:47:50,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:47:50,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 218 [2024-11-16 23:47:50,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 187 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:50,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:50,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 218 [2024-11-16 23:47:50,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:50,702 INFO L124 PetriNetUnfolderBase]: 83/734 cut-off events. [2024-11-16 23:47:50,703 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-16 23:47:50,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 734 events. 83/734 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2907 event pairs, 5 based on Foata normal form. 0/673 useless extension candidates. Maximal degree in co-relation 815. Up to 193 conditions per place. [2024-11-16 23:47:50,708 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 42 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-11-16 23:47:50,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 194 transitions, 534 flow [2024-11-16 23:47:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:47:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:47:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2024-11-16 23:47:50,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8065749235474006 [2024-11-16 23:47:50,711 INFO L175 Difference]: Start difference. First operand has 196 places, 187 transitions, 426 flow. Second operand 6 states and 1055 transitions. [2024-11-16 23:47:50,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 194 transitions, 534 flow [2024-11-16 23:47:50,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:47:50,717 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 426 flow [2024-11-16 23:47:50,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2024-11-16 23:47:50,718 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places. [2024-11-16 23:47:50,719 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 426 flow [2024-11-16 23:47:50,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:50,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:50,720 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:50,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:47:50,720 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-16 23:47:50,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:50,721 INFO L85 PathProgramCache]: Analyzing trace with hash 567356504, now seen corresponding path program 1 times [2024-11-16 23:47:50,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:50,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576244666] [2024-11-16 23:47:50,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:50,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:50,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:50,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576244666] [2024-11-16 23:47:50,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576244666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:50,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:50,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:50,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70261264] [2024-11-16 23:47:50,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:50,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:50,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:50,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:50,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:50,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-16 23:47:50,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:50,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:50,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-16 23:47:50,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:50,899 INFO L124 PetriNetUnfolderBase]: 63/716 cut-off events. [2024-11-16 23:47:50,899 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-16 23:47:50,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 716 events. 63/716 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2863 event pairs, 49 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 749. Up to 151 conditions per place. [2024-11-16 23:47:50,903 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-11-16 23:47:50,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 187 transitions, 496 flow [2024-11-16 23:47:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:50,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-16 23:47:50,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-11-16 23:47:50,905 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 426 flow. Second operand 3 states and 560 transitions. [2024-11-16 23:47:50,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 187 transitions, 496 flow [2024-11-16 23:47:50,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 187 transitions, 486 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:47:50,908 INFO L231 Difference]: Finished difference. Result has 186 places, 185 transitions, 418 flow [2024-11-16 23:47:50,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=186, PETRI_TRANSITIONS=185} [2024-11-16 23:47:50,909 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -24 predicate places. [2024-11-16 23:47:50,909 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 185 transitions, 418 flow [2024-11-16 23:47:50,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:50,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:50,910 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:50,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:47:50,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-16 23:47:50,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:50,913 INFO L85 PathProgramCache]: Analyzing trace with hash -280711584, now seen corresponding path program 1 times [2024-11-16 23:47:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:50,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970303643] [2024-11-16 23:47:50,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:50,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:51,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:51,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970303643] [2024-11-16 23:47:51,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970303643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:47:51,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938157548] [2024-11-16 23:47:51,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:51,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:47:51,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:47:51,021 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:47:51,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:47:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:51,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 23:47:51,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:47:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 23:47:51,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:47:51,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938157548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:51,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:47:51,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-16 23:47:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269496165] [2024-11-16 23:47:51,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:51,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:51,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:51,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:47:51,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-16 23:47:51,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 185 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:51,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:51,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-16 23:47:51,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:51,251 INFO L124 PetriNetUnfolderBase]: 63/700 cut-off events. [2024-11-16 23:47:51,251 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-16 23:47:51,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 700 events. 63/700 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2762 event pairs, 49 based on Foata normal form. 0/635 useless extension candidates. Maximal degree in co-relation 723. Up to 151 conditions per place. [2024-11-16 23:47:51,255 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2024-11-16 23:47:51,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 186 transitions, 488 flow [2024-11-16 23:47:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-16 23:47:51,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-11-16 23:47:51,257 INFO L175 Difference]: Start difference. First operand has 186 places, 185 transitions, 418 flow. Second operand 3 states and 560 transitions. [2024-11-16 23:47:51,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 186 transitions, 488 flow [2024-11-16 23:47:51,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 186 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:51,261 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 416 flow [2024-11-16 23:47:51,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2024-11-16 23:47:51,262 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -25 predicate places. [2024-11-16 23:47:51,262 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 416 flow [2024-11-16 23:47:51,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:51,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:51,263 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:51,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:47:51,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 23:47:51,471 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-16 23:47:51,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash 652875312, now seen corresponding path program 1 times [2024-11-16 23:47:51,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:51,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145074074] [2024-11-16 23:47:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:51,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:51,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:47:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:51,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:47:51,527 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:47:51,528 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-16 23:47:51,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-16 23:47:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-16 23:47:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-16 23:47:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-16 23:47:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-16 23:47:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-11-16 23:47:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-16 23:47:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-16 23:47:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-16 23:47:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-16 23:47:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-16 23:47:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-16 23:47:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-16 23:47:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-16 23:47:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-16 23:47:51,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-16 23:47:51,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2024-11-16 23:47:51,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-16 23:47:51,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-16 23:47:51,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-16 23:47:51,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-16 23:47:51,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-16 23:47:51,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-16 23:47:51,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:47:51,535 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:51,541 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:47:51,541 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:47:51,565 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-16 23:47:51,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 259 places, 272 transitions, 588 flow [2024-11-16 23:47:51,731 INFO L124 PetriNetUnfolderBase]: 131/1812 cut-off events. [2024-11-16 23:47:51,732 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-16 23:47:51,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 1812 events. 131/1812 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 10573 event pairs, 2 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 1028. Up to 32 conditions per place. [2024-11-16 23:47:51,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 259 places, 272 transitions, 588 flow [2024-11-16 23:47:51,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 272 transitions, 588 flow [2024-11-16 23:47:51,748 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:47:51,748 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d375e11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:47:51,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-16 23:47:51,750 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:47:51,750 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-11-16 23:47:51,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:47:51,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:51,751 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:51,751 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:51,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:51,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1218476998, now seen corresponding path program 1 times [2024-11-16 23:47:51,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:51,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18399500] [2024-11-16 23:47:51,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:51,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:51,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18399500] [2024-11-16 23:47:51,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18399500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:51,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:51,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:51,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813495545] [2024-11-16 23:47:51,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:51,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:51,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:51,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:51,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:51,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-16 23:47:51,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 272 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:51,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:51,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-16 23:47:51,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:52,634 INFO L124 PetriNetUnfolderBase]: 1200/7025 cut-off events. [2024-11-16 23:47:52,634 INFO L125 PetriNetUnfolderBase]: For 678/712 co-relation queries the response was YES. [2024-11-16 23:47:52,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 7025 events. 1200/7025 cut-off events. For 678/712 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 62212 event pairs, 985 based on Foata normal form. 1614/7417 useless extension candidates. Maximal degree in co-relation 4757. Up to 2070 conditions per place. [2024-11-16 23:47:52,754 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 39 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2024-11-16 23:47:52,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 255 transitions, 636 flow [2024-11-16 23:47:52,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:52,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-11-16 23:47:52,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602941176470589 [2024-11-16 23:47:52,756 INFO L175 Difference]: Start difference. First operand has 259 places, 272 transitions, 588 flow. Second operand 3 states and 702 transitions. [2024-11-16 23:47:52,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 255 transitions, 636 flow [2024-11-16 23:47:52,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 255 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:47:52,759 INFO L231 Difference]: Finished difference. Result has 252 places, 255 transitions, 558 flow [2024-11-16 23:47:52,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=252, PETRI_TRANSITIONS=255} [2024-11-16 23:47:52,760 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -7 predicate places. [2024-11-16 23:47:52,760 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 255 transitions, 558 flow [2024-11-16 23:47:52,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:52,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:52,761 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:52,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:47:52,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:52,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:52,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1415922583, now seen corresponding path program 1 times [2024-11-16 23:47:52,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:52,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650402593] [2024-11-16 23:47:52,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:52,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:52,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:52,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650402593] [2024-11-16 23:47:52,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650402593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:52,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:52,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:52,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634181391] [2024-11-16 23:47:52,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:52,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:52,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:52,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:52,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:52,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2024-11-16 23:47:52,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 255 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:52,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:52,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2024-11-16 23:47:52,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:53,756 INFO L124 PetriNetUnfolderBase]: 1650/7393 cut-off events. [2024-11-16 23:47:53,756 INFO L125 PetriNetUnfolderBase]: For 653/671 co-relation queries the response was YES. [2024-11-16 23:47:53,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10613 conditions, 7393 events. 1650/7393 cut-off events. For 653/671 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 62421 event pairs, 1169 based on Foata normal form. 0/6610 useless extension candidates. Maximal degree in co-relation 10582. Up to 2412 conditions per place. [2024-11-16 23:47:53,806 INFO L140 encePairwiseOnDemand]: 249/272 looper letters, 41 selfloop transitions, 11 changer transitions 0/247 dead transitions. [2024-11-16 23:47:53,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 247 transitions, 646 flow [2024-11-16 23:47:53,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:53,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-11-16 23:47:53,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8063725490196079 [2024-11-16 23:47:53,808 INFO L175 Difference]: Start difference. First operand has 252 places, 255 transitions, 558 flow. Second operand 3 states and 658 transitions. [2024-11-16 23:47:53,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 247 transitions, 646 flow [2024-11-16 23:47:53,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 247 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:53,812 INFO L231 Difference]: Finished difference. Result has 240 places, 243 transitions, 552 flow [2024-11-16 23:47:53,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=240, PETRI_TRANSITIONS=243} [2024-11-16 23:47:53,814 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-11-16 23:47:53,815 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 243 transitions, 552 flow [2024-11-16 23:47:53,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:53,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:53,815 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:53,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:47:53,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:53,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:53,816 INFO L85 PathProgramCache]: Analyzing trace with hash 439965323, now seen corresponding path program 1 times [2024-11-16 23:47:53,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:53,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53473937] [2024-11-16 23:47:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:53,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:53,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:53,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53473937] [2024-11-16 23:47:53,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53473937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:53,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:53,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:47:53,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239922193] [2024-11-16 23:47:53,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:53,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:53,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:53,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:53,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:53,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 272 [2024-11-16 23:47:53,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 243 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:53,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:53,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 272 [2024-11-16 23:47:53,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:54,416 INFO L124 PetriNetUnfolderBase]: 630/4819 cut-off events. [2024-11-16 23:47:54,416 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2024-11-16 23:47:54,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6501 conditions, 4819 events. 630/4819 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 40478 event pairs, 228 based on Foata normal form. 42/4348 useless extension candidates. Maximal degree in co-relation 4159. Up to 682 conditions per place. [2024-11-16 23:47:54,450 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 37 selfloop transitions, 8 changer transitions 0/259 dead transitions. [2024-11-16 23:47:54,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 259 transitions, 698 flow [2024-11-16 23:47:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-11-16 23:47:54,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2024-11-16 23:47:54,452 INFO L175 Difference]: Start difference. First operand has 240 places, 243 transitions, 552 flow. Second operand 3 states and 736 transitions. [2024-11-16 23:47:54,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 259 transitions, 698 flow [2024-11-16 23:47:54,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 259 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:54,457 INFO L231 Difference]: Finished difference. Result has 241 places, 247 transitions, 578 flow [2024-11-16 23:47:54,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=241, PETRI_TRANSITIONS=247} [2024-11-16 23:47:54,458 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -18 predicate places. [2024-11-16 23:47:54,458 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 247 transitions, 578 flow [2024-11-16 23:47:54,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:54,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:54,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:54,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:47:54,459 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:54,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:54,459 INFO L85 PathProgramCache]: Analyzing trace with hash -950015608, now seen corresponding path program 1 times [2024-11-16 23:47:54,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:54,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102337674] [2024-11-16 23:47:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:54,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:54,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:54,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102337674] [2024-11-16 23:47:54,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102337674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:54,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:54,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:47:54,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175635670] [2024-11-16 23:47:54,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:54,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:47:54,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:54,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:47:54,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:47:54,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 272 [2024-11-16 23:47:54,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 247 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:54,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:54,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 272 [2024-11-16 23:47:54,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:55,719 INFO L124 PetriNetUnfolderBase]: 1558/7502 cut-off events. [2024-11-16 23:47:55,719 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2024-11-16 23:47:55,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11144 conditions, 7502 events. 1558/7502 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 63375 event pairs, 74 based on Foata normal form. 0/6971 useless extension candidates. Maximal degree in co-relation 5065. Up to 2728 conditions per place. [2024-11-16 23:47:55,793 INFO L140 encePairwiseOnDemand]: 266/272 looper letters, 62 selfloop transitions, 6 changer transitions 0/262 dead transitions. [2024-11-16 23:47:55,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 262 transitions, 744 flow [2024-11-16 23:47:55,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:47:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:47:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2024-11-16 23:47:55,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8082107843137255 [2024-11-16 23:47:55,796 INFO L175 Difference]: Start difference. First operand has 241 places, 247 transitions, 578 flow. Second operand 6 states and 1319 transitions. [2024-11-16 23:47:55,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 262 transitions, 744 flow [2024-11-16 23:47:55,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 262 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:47:55,801 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 580 flow [2024-11-16 23:47:55,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-11-16 23:47:55,802 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -15 predicate places. [2024-11-16 23:47:55,802 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 580 flow [2024-11-16 23:47:55,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:55,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:55,803 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:55,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:47:55,804 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:55,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:55,804 INFO L85 PathProgramCache]: Analyzing trace with hash -566593707, now seen corresponding path program 1 times [2024-11-16 23:47:55,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:55,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128505546] [2024-11-16 23:47:55,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:55,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:55,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128505546] [2024-11-16 23:47:55,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128505546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:55,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:55,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:55,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807518312] [2024-11-16 23:47:55,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:55,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:55,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:55,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:55,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:55,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-16 23:47:55,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:55,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:55,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-16 23:47:55,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:56,665 INFO L124 PetriNetUnfolderBase]: 1177/6971 cut-off events. [2024-11-16 23:47:56,666 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-11-16 23:47:56,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9778 conditions, 6971 events. 1177/6971 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 60544 event pairs, 990 based on Foata normal form. 0/6384 useless extension candidates. Maximal degree in co-relation 4376. Up to 2049 conditions per place. [2024-11-16 23:47:56,713 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2024-11-16 23:47:56,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 249 transitions, 676 flow [2024-11-16 23:47:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:56,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-11-16 23:47:56,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-11-16 23:47:56,716 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 580 flow. Second operand 3 states and 694 transitions. [2024-11-16 23:47:56,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 249 transitions, 676 flow [2024-11-16 23:47:56,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 249 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:47:56,719 INFO L231 Difference]: Finished difference. Result has 240 places, 245 transitions, 570 flow [2024-11-16 23:47:56,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=240, PETRI_TRANSITIONS=245} [2024-11-16 23:47:56,720 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-11-16 23:47:56,720 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 245 transitions, 570 flow [2024-11-16 23:47:56,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:56,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:56,721 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:56,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:47:56,721 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:56,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1457023505, now seen corresponding path program 1 times [2024-11-16 23:47:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:56,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212467101] [2024-11-16 23:47:56,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:56,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:56,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212467101] [2024-11-16 23:47:56,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212467101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:47:56,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030039008] [2024-11-16 23:47:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:56,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:47:56,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:47:56,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:47:56,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:47:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:56,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 23:47:56,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:47:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 23:47:56,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:47:56,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030039008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:56,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:47:56,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-16 23:47:56,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247945576] [2024-11-16 23:47:56,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:56,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:56,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:56,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:56,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:47:56,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-11-16 23:47:56,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:56,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:56,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-11-16 23:47:56,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:57,621 INFO L124 PetriNetUnfolderBase]: 1177/6926 cut-off events. [2024-11-16 23:47:57,622 INFO L125 PetriNetUnfolderBase]: For 752/752 co-relation queries the response was YES. [2024-11-16 23:47:57,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9695 conditions, 6926 events. 1177/6926 cut-off events. For 752/752 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 60206 event pairs, 990 based on Foata normal form. 0/6336 useless extension candidates. Maximal degree in co-relation 4882. Up to 2049 conditions per place. [2024-11-16 23:47:57,662 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/248 dead transitions. [2024-11-16 23:47:57,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 248 transitions, 666 flow [2024-11-16 23:47:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:57,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-11-16 23:47:57,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-11-16 23:47:57,664 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 570 flow. Second operand 3 states and 694 transitions. [2024-11-16 23:47:57,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 248 transitions, 666 flow [2024-11-16 23:47:57,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 248 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:57,667 INFO L231 Difference]: Finished difference. Result has 239 places, 244 transitions, 568 flow [2024-11-16 23:47:57,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=239, PETRI_TRANSITIONS=244} [2024-11-16 23:47:57,668 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -20 predicate places. [2024-11-16 23:47:57,668 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 244 transitions, 568 flow [2024-11-16 23:47:57,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:57,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:57,669 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:57,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:47:57,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 23:47:57,873 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:57,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:57,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1222341156, now seen corresponding path program 1 times [2024-11-16 23:47:57,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:57,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079031449] [2024-11-16 23:47:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:57,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:57,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:57,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079031449] [2024-11-16 23:47:57,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079031449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:47:57,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082484293] [2024-11-16 23:47:57,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:57,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:47:57,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:47:57,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:47:57,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:47:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:58,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:47:58,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:47:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:58,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:47:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:58,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082484293] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:47:58,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:47:58,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:47:58,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210573176] [2024-11-16 23:47:58,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:47:58,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:47:58,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:58,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:47:58,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:47:58,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2024-11-16 23:47:58,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 244 transitions, 568 flow. Second operand has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:58,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:58,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2024-11-16 23:47:58,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:58,445 INFO L124 PetriNetUnfolderBase]: 62/390 cut-off events. [2024-11-16 23:47:58,446 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-16 23:47:58,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 390 events. 62/390 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1461 event pairs, 0 based on Foata normal form. 12/402 useless extension candidates. Maximal degree in co-relation 540. Up to 42 conditions per place. [2024-11-16 23:47:58,447 INFO L140 encePairwiseOnDemand]: 267/272 looper letters, 29 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2024-11-16 23:47:58,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 248 flow [2024-11-16 23:47:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:47:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:47:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2027 transitions. [2024-11-16 23:47:58,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8280228758169934 [2024-11-16 23:47:58,451 INFO L175 Difference]: Start difference. First operand has 239 places, 244 transitions, 568 flow. Second operand 9 states and 2027 transitions. [2024-11-16 23:47:58,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 248 flow [2024-11-16 23:47:58,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:47:58,452 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 150 flow [2024-11-16 23:47:58,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-11-16 23:47:58,452 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -184 predicate places. [2024-11-16 23:47:58,452 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 150 flow [2024-11-16 23:47:58,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:58,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:58,454 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:58,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 23:47:58,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:47:58,655 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-16 23:47:58,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:58,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1761296537, now seen corresponding path program 1 times [2024-11-16 23:47:58,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:58,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107422250] [2024-11-16 23:47:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:58,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:58,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:47:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:58,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:47:58,695 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:47:58,695 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-16 23:47:58,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-16 23:47:58,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-16 23:47:58,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-16 23:47:58,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-16 23:47:58,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-16 23:47:58,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-11-16 23:47:58,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-16 23:47:58,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-16 23:47:58,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-16 23:47:58,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-16 23:47:58,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-16 23:47:58,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-16 23:47:58,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-16 23:47:58,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-16 23:47:58,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-16 23:47:58,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-16 23:47:58,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:47:58,701 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:58,702 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:47:58,702 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:47:58,732 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-16 23:47:58,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 326 transitions, 724 flow [2024-11-16 23:47:59,433 INFO L124 PetriNetUnfolderBase]: 544/5934 cut-off events. [2024-11-16 23:47:59,434 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-11-16 23:47:59,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6370 conditions, 5934 events. 544/5934 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 46699 event pairs, 64 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 3413. Up to 192 conditions per place. [2024-11-16 23:47:59,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 326 transitions, 724 flow [2024-11-16 23:47:59,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 326 transitions, 724 flow [2024-11-16 23:47:59,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:47:59,497 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d375e11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:47:59,497 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-16 23:47:59,498 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:47:59,498 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-11-16 23:47:59,498 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:47:59,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:59,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:59,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:47:59,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:59,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1512867526, now seen corresponding path program 1 times [2024-11-16 23:47:59,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:59,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764928132] [2024-11-16 23:47:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:59,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:59,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:59,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764928132] [2024-11-16 23:47:59,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764928132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:59,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:59,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:59,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299997267] [2024-11-16 23:47:59,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:59,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:59,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:59,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:59,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:59,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 326 [2024-11-16 23:47:59,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 326 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:47:59,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:59,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 326 [2024-11-16 23:47:59,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:48:09,023 INFO L124 PetriNetUnfolderBase]: 12815/49237 cut-off events. [2024-11-16 23:48:09,024 INFO L125 PetriNetUnfolderBase]: For 7748/8294 co-relation queries the response was YES. [2024-11-16 23:48:09,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71260 conditions, 49237 events. 12815/49237 cut-off events. For 7748/8294 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 571713 event pairs, 10886 based on Foata normal form. 19499/60616 useless extension candidates. Maximal degree in co-relation 36872. Up to 19303 conditions per place. [2024-11-16 23:48:09,903 INFO L140 encePairwiseOnDemand]: 307/326 looper letters, 47 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2024-11-16 23:48:09,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 303 transitions, 776 flow [2024-11-16 23:48:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:48:09,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:48:09,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2024-11-16 23:48:09,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8558282208588958 [2024-11-16 23:48:09,906 INFO L175 Difference]: Start difference. First operand has 308 places, 326 transitions, 724 flow. Second operand 3 states and 837 transitions. [2024-11-16 23:48:09,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 303 transitions, 776 flow [2024-11-16 23:48:09,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 303 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:48:09,917 INFO L231 Difference]: Finished difference. Result has 297 places, 303 transitions, 682 flow [2024-11-16 23:48:09,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=297, PETRI_TRANSITIONS=303} [2024-11-16 23:48:09,918 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2024-11-16 23:48:09,918 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 303 transitions, 682 flow [2024-11-16 23:48:09,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:48:09,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:48:09,919 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:48:09,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:48:09,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:48:09,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:48:09,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1551243099, now seen corresponding path program 1 times [2024-11-16 23:48:09,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:48:09,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155501027] [2024-11-16 23:48:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:48:09,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:48:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:48:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:48:09,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:48:09,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155501027] [2024-11-16 23:48:09,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155501027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:48:09,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:48:09,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:48:09,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407613179] [2024-11-16 23:48:09,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:48:09,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:48:09,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:48:09,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:48:09,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:48:10,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 326 [2024-11-16 23:48:10,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 303 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:48:10,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:48:10,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 326 [2024-11-16 23:48:10,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:48:19,906 INFO L124 PetriNetUnfolderBase]: 17515/54770 cut-off events. [2024-11-16 23:48:19,906 INFO L125 PetriNetUnfolderBase]: For 7563/8011 co-relation queries the response was YES. [2024-11-16 23:48:20,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84337 conditions, 54770 events. 17515/54770 cut-off events. For 7563/8011 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 595319 event pairs, 12762 based on Foata normal form. 0/49554 useless extension candidates. Maximal degree in co-relation 84304. Up to 22195 conditions per place. [2024-11-16 23:48:20,910 INFO L140 encePairwiseOnDemand]: 303/326 looper letters, 51 selfloop transitions, 11 changer transitions 0/297 dead transitions. [2024-11-16 23:48:20,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 297 transitions, 794 flow [2024-11-16 23:48:20,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:48:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:48:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2024-11-16 23:48:20,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8087934560327198 [2024-11-16 23:48:20,913 INFO L175 Difference]: Start difference. First operand has 297 places, 303 transitions, 682 flow. Second operand 3 states and 791 transitions. [2024-11-16 23:48:20,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 297 transitions, 794 flow [2024-11-16 23:48:20,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 297 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:48:20,928 INFO L231 Difference]: Finished difference. Result has 285 places, 291 transitions, 676 flow [2024-11-16 23:48:20,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=285, PETRI_TRANSITIONS=291} [2024-11-16 23:48:20,929 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -23 predicate places. [2024-11-16 23:48:20,929 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 291 transitions, 676 flow [2024-11-16 23:48:20,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:48:20,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:48:20,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:48:20,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:48:20,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:48:20,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:48:20,930 INFO L85 PathProgramCache]: Analyzing trace with hash 194522507, now seen corresponding path program 1 times [2024-11-16 23:48:20,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:48:20,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357878425] [2024-11-16 23:48:20,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:48:20,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:48:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:48:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:48:20,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:48:20,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357878425] [2024-11-16 23:48:20,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357878425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:48:20,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:48:20,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:48:20,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139899954] [2024-11-16 23:48:20,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:48:20,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:48:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:48:20,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:48:20,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:48:21,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 326 [2024-11-16 23:48:21,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 291 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:48:21,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:48:21,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 326 [2024-11-16 23:48:21,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:48:27,087 INFO L124 PetriNetUnfolderBase]: 8365/37765 cut-off events. [2024-11-16 23:48:27,087 INFO L125 PetriNetUnfolderBase]: For 10184/10738 co-relation queries the response was YES. [2024-11-16 23:48:27,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55596 conditions, 37765 events. 8365/37765 cut-off events. For 10184/10738 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 459202 event pairs, 3344 based on Foata normal form. 300/33765 useless extension candidates. Maximal degree in co-relation 37121. Up to 8245 conditions per place. [2024-11-16 23:48:27,505 INFO L140 encePairwiseOnDemand]: 314/326 looper letters, 51 selfloop transitions, 8 changer transitions 0/313 dead transitions. [2024-11-16 23:48:27,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 313 transitions, 874 flow [2024-11-16 23:48:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:48:27,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:48:27,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2024-11-16 23:48:27,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8926380368098159 [2024-11-16 23:48:27,510 INFO L175 Difference]: Start difference. First operand has 285 places, 291 transitions, 676 flow. Second operand 3 states and 873 transitions. [2024-11-16 23:48:27,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 313 transitions, 874 flow [2024-11-16 23:48:27,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 313 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:48:27,529 INFO L231 Difference]: Finished difference. Result has 286 places, 295 transitions, 702 flow [2024-11-16 23:48:27,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=286, PETRI_TRANSITIONS=295} [2024-11-16 23:48:27,530 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -22 predicate places. [2024-11-16 23:48:27,530 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 295 transitions, 702 flow [2024-11-16 23:48:27,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:48:27,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:48:27,531 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:48:27,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:48:27,531 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [setThreadErr1ASSERT_VIOLATIONDATA_RACE, setThreadErr0ASSERT_VIOLATIONDATA_RACE, checkThreadErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:48:27,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:48:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2074364492, now seen corresponding path program 1 times [2024-11-16 23:48:27,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:48:27,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296057881] [2024-11-16 23:48:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:48:27,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:48:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:48:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:48:27,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:48:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296057881] [2024-11-16 23:48:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296057881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:48:27,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:48:27,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:48:27,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535979017] [2024-11-16 23:48:27,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:48:27,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:48:27,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:48:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:48:27,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:48:28,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 326 [2024-11-16 23:48:28,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 295 transitions, 702 flow. Second operand has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:48:28,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:48:28,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 326 [2024-11-16 23:48:28,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:48:40,015 INFO L124 PetriNetUnfolderBase]: 19159/64405 cut-off events. [2024-11-16 23:48:40,016 INFO L125 PetriNetUnfolderBase]: For 9276/9276 co-relation queries the response was YES. [2024-11-16 23:48:40,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101733 conditions, 64405 events. 19159/64405 cut-off events. For 9276/9276 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 749526 event pairs, 801 based on Foata normal form. 0/60778 useless extension candidates. Maximal degree in co-relation 49665. Up to 29355 conditions per place.